For readers with a background in physics and math, there's certainly generous helping of science, for example: 'Precisely because there is an absolute limiting speed (at which light travels in vacuo likewise neutrinos) there is an interdependence of space, time. For this to be true in our known universe the person inside the unit would have to travelling at the speed of light relative to a person outside the unit. According to James Blish, Tau Zero is the ultimate hard science fiction novel. zero time passes for a person placed inside a "zero tau" unit, relative to an observer outside the unit.
In Hamilton's universe "zero-tau" is used as an expression of "zero time", i.e. The story in the novel revolves around a spaceship that travels ever closer to the speed of light, and hence closer to "tau zero" - time passes normally for the crew on board but the relative passage of time externally keeps increasing. Poul Andersons Tau Zero is an outstanding work of science fiction, in part because it combines two qualities that are often at odds in this genre: an interest.
In the novel tau is described as the "time contraction factor" which is related to the speed of light and the relative velocity of an object.
The name of that novel is itself derived from a fictional variation of the mathematical concept of tau. Out-of-universe, the name "zero-tau" is probably a nod to the 1970 sci fi novel by Poul Anderson "Tau Zero". They're described as a device that stops the flow of time for objects (including humans) placed inside them and that's not possible according to our current understanding of the universe. There's no science to support the idea of the "zero tau" pods described in these novels. The time constant is the main characteristic unit of a first-order LTI system. While there are infinitely many shapes with constant diameter, the circle is unique in having a constant radius.In short, no. In physics and engineering, the time constant, usually denoted by the Greek letter (tau), is the parameter characterizing the response to a step input of a first-order, linear time-invariant (LTI) system.
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